Typographic paper-punch.



PATENTED FEB. 27, 1906.

T. E. MELVIN. TYPOGRAPHIG PAPER PUNCH.

APPLICATION FILED JULY 11, 1905.

UNITED STATES PATENT OFFICE.

TYPOGRAPHIC N 0. 813,907. Specification of PAPER-PUNCH.

Letters Patent. Patented Feb. 27, 1906.

Application filed July 11, 1905. Serial No. 269,266.

To all whom it may concern:

Be it known that I, THAYER E. MELVIN, a citizen of the United States of America, residing at Allegheny, in the county of Allegheny and State of Pennsylvania, have invented new and useful Improvements in Typographic Paper-Punches, of which the following is a specification.

This invention relates to a typographic paper-punch adapted to be locked in an ordinary chase and to be employed on a printing-press in connection with or independent of a type-form for perforating sheets of paper, the punch being formed on the ordinary point system, so that it may be set up with type in a form to perforate the sheets as the impressions are made.

The object of the invention'is to provide a simple, efficient, and reliable device of this character whereby the operation of perforating sheets of paper, cardboard, or other materials may be cleanly and expeditiously per.- formed and the cuttings collected in order to prevent the same from being scattered about and clinging to the sheets or parts of the press.

The preferred embodiment of the invention is illustrated in the accompanying drawings, in which Figure 1 is a vertical longitudinal section through the punch 'and receptacle. Fig.2 is a cross-section through the punch on line 2 2 of Fig.1 Fig.3 is a bottom plan view of the punch and the adjacent portion of the receptacle, showing the connection at the base between the same. Fig. 4 is a sectional view through the bed of the press, the platen, and the punch applied to a chase for use, showing the punch at the limit of its movement for perforating a sheet of paper. Fig. 5 is a detail view of the impression-disk. Fig. 6 is a view similar to Fig. 1, showing a modification in the construction of the punch and receptacle; and Fig. 7 is a plan view showing the punch locked in a chase for use.

Referring now more particularly to the drawings, the numeral 1 designates a punch which comprises a block, preferably of rectangular form and cast or otherwise made on the point system, so that it may be set up with ordinary type in a chase. The block is provided upon its outer face with a tapered punching projection 2 and a tapered passage 3, communicating therewith, which passage extends through the block to the base thereof, at which point it communicates with a substantially U-shaped recess 4, opening through one side of the block. At the latter-named side of the block an eduction-opening 5 is formed and communicates with the passage 3. The passage 3 receives the cuttings made by the tubular punching projection 2 and permits the same to feed therefrom to the outletopening 5. The opening 5 communicates with a cuttings-receptacle 6, which may be formed of sheet metal or other suitable material. This receptacle 6 corresponds in width with the punch-block 1, but is of greater length and is preferably of oblong rectangular form. The outer end of the receptacle 6 is closed, while the inner end thereof is open and is adapted to be closed by the punchblock. As shown, the said inner end of the receptacle is so constructed as to adapt the inner edges of its outer or front wall and its side wall to abut against the side of the block in which the eduction-opening 5 is formed, while the base-wall of the receptacle is formed with a tongue or projection. 7, corresponding in form to the recess 4 and adapted to fit within the same to hold the block and receptacle from independent movement when the two are locked in a chase for use. It will thus be observed that the cuttings received in the passage 3 will feed therefrom through the eduction-opening 5 into the receptacle 6, in which they will be retained as long as the punch is in use, thus preventing the cuttings made by the punch from scattering and clinging to the sheets or parts of the press. When the punch is removed from the chase, the receptacle 6 may be readily detached therefrom and the cuttings discharged.

In the modified embodiment of the invention shown in Fig. 6 the punch-block 1 is provided with a conducting-passage 3 which tapers or flares outwardly in length from the outer face of the block to the side thereof which abuts against the inlet end of the re ceptacle 6 and curves or extends from the outer face of the block through the side thereof to form a continuous passage to dispense with the use of the eduction-opening 5. The tubular punch 2 in this form is provided with a threaded shank 2 to fit into the outer threaded end of the passage 3 This construction permits of the ready removal of a dulled or worn-out punch projection and the substitution of a new one therefor.

Fig. 7 shows the application of the punch and its receptacle to an ordinary chase 8, wherein it will be seen that the punch and receptacle are disposed longitudinally between the pieces of furniture 9 and are clamped at their ends between quads 10, the furniture and quads being locked in the chase by the usual quoins 11. This view shows the application of the punch in its rece tacle for perforating cardboard, paper, an other material which is not to be printed or prior or subsequent to the printing operation. It will also be apparent that as the punch and its receptacle are formed on the point system they may be set up in a form with ordinary printingtype, so as to be used for punching the paper or other material at the time the impression is made.

In the operation of the device it will of course be understood that the chase 8 con taining the punch is locked to the bed 12 of the press in the usual way, while the sheet 13 to be erforated is applied to the platen 14. In orclbr to insure a clean cut of the punch through the sheet 13 and to properly back said sheet during the punching operation, an impression-disk 15 is preferably used. This disk, which may be made of lead or any other suitable comparatively soft material, is provided with a central projection 16 to pass into the punch 2 or 2 and is suitably secured to the tympan-sheet on the platen. I/Vhen the punch comes in contact with the sheet 13, the latter will be backed by the disk 15, thus allowing the unch to cut cleanly through the paper and t e cuuting to be forced by the projection 16 through the punch into the passage 3 or 3. By making the impression-disk '15 of lead or some other soft suitably relatively soft material the material to be punched will be efficiently backed, while undue wear upon the punch will be prevented. The projection 16 also cooperates with the punch to form the perforation.

From the foregoing description, taken in connection with the accompanying drawings, the construction and mode of use of my improved punching or perforating attachment for printing-presses will be understood, and it will be seen that it provides a punching device which is simple in construction, eflicient in use, and may be employed in connection with a printing-form for perforating the sheets at the time the impression is made and that substantial advantages are secured by the use of the receptacle 6 in order to prevent the cuttings from being scattered and clinging to the paper or parts of the press.

The punch and its receptacle may of course be made of varying sizes to meet different conditions of service.

Having thus described the invention, what is claimed as new is 1. A punch comprising a block provided with a perforating projection and a passage having a side outlet, and a receptacle having an open end adapted to be closed by the side of the block through which the outlet extends, said block and receptacle being coextensive in width and adapted to be conjointly locked in a chase, and being independent of one another.

2. A perforating attachment for printingpresses comprising a block provided with a punching projection and a passage communicating with said projection and having an outlet through one of the sides of the block,

and a receptacle independent of the block and coextensive in width therewith, said receptacle having an open end adapted to bear a ainst and to be closed by the side of the b ock through which the outlet extends.

3. A perforating attachment for printingpresses comprising a block having a punching projection and a passage communicating therewith, said passage having an outlet through one of the sides of the block, and a receptacle having an open end adapted to abut a ainst and to be closed by the side of the b ock through which the outlet extends, said block and receptacle having interengaging portions to hold them in assembled relation.

4. A punch comprising a block provided with a tubular punching projection, a passage communicating therewith and provided with a side outlet, and a recess in the base of the block, in combination with a receptacle adapted to bear against the outlet side of the block and communicating with the passage and provided with a tongue or projection to fit within said recess.

In testimony whereof I affix my signature in presence of two witnesses.

TI-IAYER E. MELVIN.

-Witnesses: 1

WM. F. LINDSEY, J. F. LOER. 

